4DG Series – High-Performance Valves_
Fire-safe design, over-travel protection, PTFE/CFT/GFT seats.
Overview
The INVAR 4DG Series is engineered for superior control, reliability, and fire-safe operation. Designed with integrated over-travel protection and a unique two-part seat assembly
Key Features
- One-piece 17-4 PH stainless steel stem
- Fire-safe backup metal seat
- Over-travel stopper reduces seat damage
- Sealings: PTFE, CFT or GFT material
- Seat: RPTFE material
- Seat O-ring: Viton material
- Extended neck for insulated pipelines
- Precision machined for smooth operation
Ideal Applications
- Petrochemical
- Refining
- Power & steam
- High-temperature industrial services
